ReadWriteQuiz
Chinese dictionary
v.be proficient/well-versed in
谙熟地理学
knowledgeable about geography
谙熟英语
be well versed in the English
谙熟名言
an expert on aphorisms
谙熟世界历史
be conversant with world history
谙熟行业门路的推销员
a salesman who knew all the tricks of the trade
antonym